Mr Haitham Hamoda, Consultant Gynaecologist, King’s College Hospital, and Trustee - British Menopause Society, answers these FAQs: Why do you need to take progestogen with HRT? Are all progestogens used for the purpose of systemic HRT similar in the way they work and in their risk profiles? Can progestogens be administered vaginally or by other non-oral ways? Can progesterone only contraceptive pills be used as an equivalent alternative for the purpose of HRT? Do women on high doses of estrogen require a proportionate increase in the progestogen dose?